Examples of JDOMetaDataManager

org.datanucleus.api.jdo.metadata.JDOMetaDataManager
Manager of JDO MetaData information in DataNucleus.
Acts as a registry of JDO metadata so that metadata files don't need to be parsed multiple times. MetaData is stored as a FileMetaData, which contains PackageMetaData, which contains ClassMetaData, and so on. This maps exactly to the users model of their metadata. The users access point is getMetaDataForClass() which will check the known classes without metadata, then check the existing registered metdata, then check the valid locations for metdata files. This way, the metadata is managed from this single point.

When the MetaData is requested for a class, if it isn't already found, the valid file locations are checked for that class and the file containing it will be read. The MetaData for all classes, queries, sequences etc in that file are loaded at that point. In addition, all classes will be "populated" (meaning that their superclasses are assigned, and unspecified fields are added, and any related objects are linked). The MetaData of these classes are only initialised when they are absolutely needed - to avoid generating circular references in the initialisation process.

Each NucleusContext typically will have its own MetaDataManager so allowing Meta-Data to be for different datastores. In addition, each PMF can allow MetaData files to use a particular suffix, hence we allow the JDO/ORM file suffices to be specifiable at construction.
org.datanucleus.jdo.metadata.JDOMetaDataManager
Manager of JDO MetaData information in DataNucleus.
Acts as a registry of JDO metadata so that metadata files don't need to be parsed multiple times. MetaData is stored as a FileMetaData, which contains PackageMetaData, which contains ClassMetaData, and so on. This maps exactly to the users model of their metadata. The users access point is getMetaDataForClass() which will check the known classes without metadata, then check the existing registered metdata, then check the valid locations for metdata files. This way, the metadata is managed from this single point.

When the MetaData is requested for a class, if it isn't already found, the valid file locations are checked for that class and the file containing it will be read. The MetaData for all classes, queries, sequences etc in that file are loaded at that point. In addition, all classes will be "populated" (meaning that their superclasses are assigned, and unspecified fields are added, and any related objects are linked). The MetaData of these classes are only initialised when they are absolutely needed - to avoid generating circular references in the initialisation process.

Each OMFContext typically will have its own MetaDataManager so allowing Meta-Data to be for different datastores. In addition, each PMF can allow MetaData files to use a particular suffix, hence we allow the JDO/ORM file suffices to be specifiable at construction.
org.jpox.jdo.metadata.JDOMetaDataManager
Manager of JDO MetaData information in JPOX.
Acts as a registry of JDO metadata so that metadata files don't need to be parsed multiple times. MetaData is stored as a FileMetaData, which contains PackageMetaData, which contains ClassMetaData, and so on. This maps exactly to the users model of their metadata. The users access point is getMetaDataForClass() which will check the known classes without metadata, then check the existing registered metdata, then check the valid locations for metdata files. This way, the metadata is managed from this single point.

When the MetaData is requested for a class, if it isnt already found, the valid file locations are checked for that class and the file containing it will be read. The MetaData for all classes, queries, sequences etc in that file are loaded at that point. In addition, all classes will be "populated" (meaning that their superclasses are assigned, and unspecified fields are added, and any related objects are linked). The MetaData of these classes are only initialised when they are absolutely needed - to avoid generating circular references in the initialisation process.

Each PMFContext typically will have its own MetaDataManager so allowing Meta-Data to be for different datastores. In addition, each PMF can allow MetaData files to use a particular suffix, hence we allow the JDO/ORM file suffices to be specifiable at construction.
@version $Revision: 1.31 $

Examples of org.datanucleus.api.jdo.metadata.JDOMetaDataManager

    /**
     * Test of the valid locations for a specified package.
     */
    public void testLocationsForPackage()
    {
        JDOMetaDataManager mgr = new JDOMetaDataManager(new NucleusContext("JDO", null));


        // Try typical JDO package name
        String packageName = "org.jpox.samples";
        List locations = mgr.getValidMetaDataLocationsForPackage("jdo", null, packageName);
        assertTrue("Locations returned from MetaData Manager was null!", locations != null);
        List validLocations = new ArrayList();
        validLocations.add("/META-INF/package.jdo");
        validLocations.add("/WEB-INF/package.jdo");
        validLocations.add("/package.jdo");
        validLocations.add("/org.jdo");
        validLocations.add("/org/package.jdo");
        validLocations.add("/org/jpox.jdo");
        validLocations.add("/org/jpox/package.jdo");
        validLocations.add("/org/jpox/samples.jdo");
        validLocations.add("/org/jpox/samples/package.jdo");
        checkLocations(packageName, locations, validLocations);


        // Try 1 level package name
        packageName = "org";
        locations = mgr.getValidMetaDataLocationsForPackage("jdo", null, packageName);
        assertTrue("Locations returned from MetaData Manager was null!", locations != null);
        validLocations.clear();
        validLocations.add("/META-INF/package.jdo");
        validLocations.add("/WEB-INF/package.jdo");
        validLocations.add("/package.jdo");
        validLocations.add("/org.jdo");
        validLocations.add("/org/package.jdo");
        checkLocations(packageName, locations, validLocations);


        // Try 0 level package name
        packageName = "";
        locations = mgr.getValidMetaDataLocationsForPackage("jdo", null, packageName);
        assertTrue("Locations returned from MetaData Manager was null!", locations != null);
        validLocations.clear();
        validLocations.add("/META-INF/package.jdo");
        validLocations.add("/WEB-INF/package.jdo");
        validLocations.add("/package.jdo");
        checkLocations(packageName, locations, validLocations);


        // Try typical ORM package name
        packageName = "org.jpox.samples";
        locations = mgr.getValidMetaDataLocationsForPackage("orm", "jpox", packageName);
        assertTrue("Locations returned from MetaData Manager was null!", locations != null);
        validLocations.clear();
        validLocations.add("/META-INF/package-jpox.orm");
        validLocations.add("/WEB-INF/package-jpox.orm");
        validLocations.add("/package-jpox.orm");

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Examples of org.datanucleus.api.jdo.metadata.JDOMetaDataManager

    /**
     * Test of the valid locations for a specified class.
     */
    public void testLocationsForClass()
    {
        JDOMetaDataManager mgr = new JDOMetaDataManager(new NucleusContext("JDO", null));


        // Try typical JDO class name
        String className = "org.jpox.samples.store.Product";
        List locations = mgr.getValidMetaDataLocationsForClass("jdo", null, className);
        assertTrue("Locations returned from MetaData Manager was null!", locations != null);
        List validLocations = new ArrayList();
        validLocations.add("/META-INF/package.jdo");
        validLocations.add("/WEB-INF/package.jdo");
        validLocations.add("/package.jdo");

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Examples of org.datanucleus.api.jdo.metadata.JDOMetaDataManager

public class MetaDataParserTest extends TestCase
{
    public void testParseMetaDataURLnullURL()
    {
        MetaDataParser parser = new MetaDataParser(
            new JDOMetaDataManager(new NucleusContext("JDO", null)),true);
        try
        {
            parser.parseMetaDataURL(null, "jdo");
            fail("expected JPOXException");
        }

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Examples of org.datanucleus.api.jdo.metadata.JDOMetaDataManager

    }


    public void testParseMetaDataURLnullhandler()
    {
        MetaDataParser parser = new MetaDataParser(
            new JDOMetaDataManager(new NucleusContext("JDO", null)),true);
        try
        {
            parser.parseMetaDataURL(getClass().getResource("/org/datanucleus/api/jdo/metadata/xml/package2.jdo"), null);
            fail("expected JPOXException");
        }

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Examples of org.datanucleus.api.jdo.metadata.JDOMetaDataManager

public class PersistenceFileMetaDataHandlerTest extends TestCase
{
    public void testParseDefaultNamespace()
    {
        MetaDataParser parser = new MetaDataParser(
            new JDOMetaDataManager(new NucleusContext("JDO", null)),true);
        MetaData md = parser.parseMetaDataURL(getClass().getResource("/org/datanucleus/api/jdo/metadata/xml/persistence1.xml"), "persistence");
        assertNotNull(md);
    }

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Examples of org.datanucleus.api.jdo.metadata.JDOMetaDataManager

    }


    public void testParseNamespace()
    {
        MetaDataParser parser = new MetaDataParser(
            new JDOMetaDataManager(new NucleusContext("JDO", null)),true);
        MetaData md = parser.parseMetaDataURL(getClass().getResource("/org/datanucleus/api/jdo/metadata/xml/persistence2.xml"), "persistence");
        assertNotNull(md);
    }

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Examples of org.datanucleus.api.jdo.metadata.JDOMetaDataManager

public class JDOMetaDataHandlerTest extends TestCase
{
    public void testParseDefaultNamespace()
    {
        MetaDataParser parser = new MetaDataParser(
            new JDOMetaDataManager(new NucleusContext("JDO", null)),true);
        MetaData md = parser.parseMetaDataURL(getClass().getResource("/org/datanucleus/api/jdo/metadata/xml/package1.jdo"), "jdo");
        assertNotNull(md);
    }

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Examples of org.datanucleus.api.jdo.metadata.JDOMetaDataManager

    }


    public void testParseNamespace()
    {
        MetaDataParser parser = new MetaDataParser(
            new JDOMetaDataManager(new NucleusContext("JDO", null)),true);
        MetaData md = parser.parseMetaDataURL(getClass().getResource("/org/datanucleus/api/jdo/metadata/xml/package2.jdo"), "jdo");
        assertNotNull(md);
    }

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Examples of org.datanucleus.api.jdo.metadata.JDOMetaDataManager

        {
            throw new IllegalArgumentException("Contents of file is null");
        }


        NucleusContext context = new NucleusContext("JDO", NucleusContext.ContextType.ENHANCEMENT, null);
        MetaDataManager mgr = new JDOMetaDataManager(context);
        MetaDataParser parser = new MetaDataParser(mgr, true);
        JDOClassLoaderResolver clr = new JDOClassLoaderResolver();


        // Parse the MetaData
        FileMetaData filemd = (FileMetaData)parser.parseMetaDataStream(
            new ByteArrayInputStream(jdoXmlContents.getBytes()), null, "JDO");
        if (filemd == null)
        {
            return null;
        }
        mgr.registerFile("EnhancerTestXMLFile", filemd, clr);


        // Populate/Initialise the MetaData for the actual classes.
        for (int i=0;i<filemd.getNoOfPackages();i++)
        {
            PackageMetaData pmd = filemd.getPackage(i);

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Examples of org.datanucleus.jdo.metadata.JDOMetaDataManager


public class JDOMetaDataHandlerTest extends TestCase
{
    public void testParseDefaultNamespace()
    {
        MetaDataParser parser = new MetaDataParser(new JDOMetaDataManager(new OMFContext(new PersistenceConfiguration(){})),true);
        MetaData md = parser.parseMetaDataURL(getClass().getResource("/org/datanucleus/metadata/xml/package1.jdo"), "jdo");
        assertNotNull(md);
    }

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